* Present participle: This is the most common use of "ing." It's used to form the present continuous tense (e.g., "He is running"), as well as to create adjectives (e.g., "an interesting book") or nouns (e.g., "singing is her passion").
* Gerund: This is a verb form that acts as a noun (e.g., "Swimming is good exercise").
* Other uses: "Ing" can also be part of other suffixes like "ingness" (e.g., "kindness") or "-ingful" (e.g., "meaningful").
To understand the meaning of "ing," you need to consider the entire word it's a part of.
For example:
* Walking: This word is a verb in the present participle form, indicating an action that is happening now.
* Singing: This word is a gerund, acting as a noun.
* Caring: This word is an adjective describing someone who shows concern.
Can you provide me with the word containing "ing" that you're interested in? I can then tell you its meaning.